Autonomous System details

AS19977

Mayer Brown LLP  ·  mayerbrown.com

United States

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AS19977 – Mayer Brown LLP

Field Value
Country United States
Website mayerbrown.com
Hosted domains 6
IPv4 addresses 2,048
IPv6 addresses 0
ASN type Business
Registry arin
Allocated 9 years ago on Aug 02, 2016
Updated 9 years ago on Aug 02, 2016

IP Ranges

Netblock Company Num of IPs
143.58.0.0/22 Mayer Brown LLP 1,024
143.58.4.0/22 Mayer Brown LLP 1,024
143.58.0.0/24 Mayer Brown LLP 256
143.58.1.0/24 Mayer Brown LLP 256
143.58.2.0/24 Mayer Brown LLP 256
143.58.3.0/24 Mayer Brown LLP 256
143.58.4.0/24 Mayer Brown LLP 256
143.58.5.0/24 Mayer Brown LLP 256
143.58.6.0/24 Mayer Brown LLP 256
143.58.7.0/24 Mayer Brown LLP 256

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS19977
                                                OrgID:          AS19977
                                                ASName:         AS19977
                                                ASNumber:       AS19977
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 6 domain names hosted across 6 IP addresses on this ASN.

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IP Address Domain Domains on this IP
143.58.1.249 ██████████ 1
143.58.4.81 ██████████ 1
143.58.5.109 ██████████ 1
143.58.1.248 ██████████ 1
143.58.5.247 ██████████ 1
143.58.1.250 ██████████ 1

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Peers

There are 2 peers for this ASN.

Peers Name
AS174 Cogent Communications, LLC
AS3356 Level 3 Parent, LLC
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Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS174 Cogent Communications, LLC
AS3356 Level 3 Parent, LLC
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Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

5 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
143.58.4.1 AS19977 Mayer Brown LLP 0.86ms from Chicago, US
143.58.0.1 AS19977 Mayer Brown LLP 1.70ms from Chicago, US
143.58.1.26 AS19977 Mayer Brown LLP 2.30ms from Chicago, US
143.58.2.1 AS19977 Mayer Brown LLP 2.33ms from Chicago, US
143.58.5.24 AS19977 Mayer Brown LLP 1.19ms from Chicago, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
57.151.49.185 AS8075 Microsoft Corporation 0.34ms from Ashburn, US
110.32.113.137 AS4804 Microplex PTY LTD 2.69ms from Brisbane, AU
192.186.135.249 AS55286 B2 Net Solutions Inc. 0.13ms from Buffalo, US
168.195.188.41 AS265439 CONTRATE TELECOMUNICAÇÕES LTDA 16.64ms from Campina Grande, BR
65.190.35.137 AS11426 Charter Communications Inc 9.44ms from Charlotte, US
69.193.92.73 AS11351 Charter Communications Inc 13.76ms from Chicago, US
216.246.76.9 AS23352 DEFT.COM 0.51ms from Denver, US
24.222.225.201 AS11260 EastLink 1.05ms from Halifax, CA
218.92.68.169 AS4134 CHINANET-BACKBONE 7.72ms from Huai'an, CN
46.60.179.57 AS51704 South West Grid for Learning Trust Ltd. 0.45ms from London, GB
37.23.217.105 AS12389 PJSC Rostelecom 5.85ms from Novosibirsk, RU
95.241.235.121 AS3269 Telecom Italia S.p.A. 3.57ms from Rome, IT
190.98.220.89 AS14259 Gtd Internet S.A. 0.67ms from Santiago, CL
181.36.96.9 AS28118 ALTICE DOMINICANA S.A. 1.66ms from Santo Domingo, DO
187.16.7.217 AS263162 Sustenta Telecom Ltda 2.45ms from Sao Paulo, BR
34.43.25.185 AS396982 Google LLC 0.07ms from Seoul, KR
186.215.146.185 AS18881 TELEFÔNICA BRASIL S.A 2.03ms from São Paulo, BR
70.24.85.233 AS577 Bell Canada 6.57ms from Toronto, CA
173.32.251.201 AS812 Rogers Communications Canada Inc. 1.73ms from Toronto, CA
188.205.72.57 AS1136 KPN B.V. 4.49ms from Amsterdam, NL
87.233.8.249 AS15703 TrueServer BV AS number 0.52ms from Amsterdam, NL
96.73.168.105 AS7922 Comcast Cable Communications, LLC 7.88ms from Ashburn, US
117.202.185.73 AS9829 National Internet Backbone 12.24ms from Bengaluru, IN
35.166.150.41 AS16509 Amazon.com, Inc. 0.17ms from Boardman, US
68.226.227.41 AS22773 Cox Communications Inc. 10.43ms from Dallas, US

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

$
traceroute -a -n -q1 -f2 -m6 143.58.3.242
traceroute to 143.58.3.242 (143.58.3.242): 6 hops max, 52 byte packets
2 [AS47447] 212.83.33.9 0.353 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Frankfurt am Main, DE
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS19977 at robtex.

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